A waterproof, dust intrusion and effective protection of the new roller bearing roller seal. It is sealed by the medial and lateral seal, bearing, the seal, side seal of five parts, packed in a small shaft and shaft retainer used as an axial position and axial force, so that the formation of the seal and end seal \u0026quot;O\u0026quot; type waterproof cyclone chamber and the eccentric spherical cavity, so as to achieve bearing waterproof, dust-proof function. |
